Glass-furnace



(No Model.) 2 Sheets-Sheet 1.

J. W. VOGBL. 7 Glass Furnace. No. 241,097. Patented May 3,1881.

Wilnejea:

N PETERS, Phobljihagmphcr. Washington. D. 0.

(No Model.) 2 Sheets-Sheet 2. 4

J. W. VOGBL Q Glass Furnace. No. 241,097 Patented M-ay 3,188I.

UNITED STATES PATENT OFFrcE.

JOHN W. VOGEL, OF SHARPSBUBG, PENNSYLVANIA.

GLASS-FURNACE.

SPECIFICATION forming part of Letters Patent No. 241,097, dated May 3,1881,

Application filed March 11, 1881.

To all whom it may concern:

Be it known that I, JOHN W. VOGEL, of Sharpshurg, in the county ofAllegheny and State of Pennsylvania, have invented certain new anduseful Improvements in Glass-Furnaces; and I do hereby declare that thefollowing is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains tomake and use the same, reference being bad to the accompanying drawings,which form a part of this specification, and in whichv Figure 1 is aperspective view, representing one-half of my improved pot-bench forglass furnaces as constructed for a circular furnace. Fig. 2 is aperspective view of a pot-bench for a square furnace, showing also thefurnacebed. Fig. 3 is a bottom plan of the pot-bench shown in Fig. 2.Fig. 4 is a perspective View of the complete furnace (of a squarepattern) with its pot or tank, the dome having been removed; and Fig. 5is a vertical cross-section of the same.

Similar letters of reference indicate corresponding parts in all thefigures.

My invention contemplates improvements in glass-furnaces of any shape,(such as round, oval, square, or horseshoe form,) its object being toexpose the tank to the greatest possible amount of heat; and to this endit consists in the construction of a pot-bench in the nature of aplatform or table, which is recessed on it's under side to form hollowducts or arches over the furnace-bed, and in the combinationof thispot-bench with the furnace-bed and sides or body of the furnace,substantially as hereinafter more fully set forth.

In the accompanying two sheets of drawings, the letter A, Figs. 2, 4,and 5, represents the furnace-bed of a glass-furnace, of which B denotesthe sides or body, which is provided with the usual flues and air-holes.

O is the fire-bed or furnace proper, which (as in the case of a circularfurnace) may be in the center or eye of the furnace, or (as in the caseof a square or rectangular furnace) it may run from front to back, orfrom the front end halfway into the furnace.

'D is the pot -.bench, which is of a shape to conform to the shape ofthe furnace-,a-nd-recessed on its under side to form covered fines orarches, as shown at d, radiating or extend- (No model.)

ing from that part of the bench which, when it is in its proper positionupon the furnace-bed, will extend from the fire-bed to the walls of thefurnace. \Vhen the pot-bench is set into the furnace an open space isleft between the top part or roof of each of the flues or arches d, topermit the flames and products of combustion to pass up between thesides of the pot or potsshown at E in Figs. at and 5 and the walls ofthe furnace, and thus facilitate melting of the batch in the pot ortank. In other words, the bench is somewhat smaller than the furnacebedand furnace, leaving an open space he' tween the sides of the bench andthe walls of the furnace to permit the flames and heated air, whichescapes from the fire-bed through the arches d, to pass up into the dome(not shown in the drawings) and surround the pots or tanks, which areplaced upon the level platform of the bench.

To prevent the bench from melting from the intense heat within thefurnace, I prefer to construct it with cold-air ducts a to, extendingfrom side to side between and above its arches d,

and desire to secure by Letters Patent of the w l United States- 1. In aglass-furnace, the combination, with the furnace-bed A, provided withthe fire-bed 0,

those parts of the bench through which the airand furnace walls or bodyB, having suitably- 1 arranged fines and air-holes, of the pot-bench I),provided with the covered tlues or arches (1, as set forth.

2. The pot-bench D, provided with the covcred arches cl and cold-airducts a, in combination with the walls of the furnace B, havingair-inlets b, registering and communicating with the ducts to of thebench, as set forth.

In testimony that I claim the foregoing as my own I have hereuntoaffixed my signature in presence of two witnesses.

JOHN W. VOGEL.

Witnesses JOHN EASTLAND,

WM. A. Bovon.

